Posted by DDK on January 26, 2015 at 11:23:18:
In Reply to: Characters tech posted by Amir on January 26, 2015 at 02:35:17:
: hello every one. i am using virtual box to run an executive file in MS-DOS 6.22 . the program issue a text box to write some command on it. but the problem is when i want to write any character either any of function kesy like F1....F12 also Enter and Shift ,..... they will apear some code on screen that is not logical. I've tried other version of MS-DOS also other virtual machines like VM-Ware and Oracle VM emulatoreven i have tried to run MS-DOS by a boot able floppy disk, but unfortunately the same problem i have.
: here are some exmaples:
: a= a[23;20H
: b= b[24;21H
Looks like you are getting ASCII code. The first 32 characters, ASCII codes 0 through 1Fh, form a special set of non-printing characters called the control characters.
Don't know if that helps, but here is more info:
http://www.erikoest.dk/ascii0.htm